Here's a few pics of my HH with Snugpak UQ . You can see how the grosgrain loops on the sides of the UQ line up perfectly with the pullouts of the hammock, helping to pull the UQ out and create more open space inside as well as keeping it locked in place so it doesn't slip off your feet and shoulder at night when you move.

Here's a pic of my JrB winter nest on the HH Expedition as well. You can see the slit in the quilt that marries to the mixed hook and loop of the Exped's entry slit, making it super easy to enter/exit with the quilt on.